DOI QR코드

DOI QR Code

Concentration of 2-Ethyl Hexanol Using an Energy-Efficient Distillation Column

에너지 절약형 증류탑을 이용한 2-에틸헥산올의 농축

  • Kim, Dae-Hwan (Department of Chemical Engineering, Dong-A University) ;
  • Park, Jung-Woo (Department of Chemical Engineering, Dong-A University) ;
  • Kim, Young-Han (Department of Chemical Engineering, Dong-A University)
  • 김대환 (동아대학교 화학공학과) ;
  • 박정우 (동아대학교 화학공학과) ;
  • 김영한 (동아대학교 화학공학과)
  • Received : 2010.02.08
  • Accepted : 2010.03.22
  • Published : 2010.03.31

Abstract

The concentration process of 2-ethyl hexanol used for the intermediate material in the production of plasticizer is examined for the energy conservation of energy-efficient distillation system instead of the conventional two column system through numerical simulation. Some 41 % of energy conservation is expected from the proposed system, and its conservation principle is explained with column profiles. In addition, not only the operating cost but also investment cost can be reduced for the additional benefit of the column application when the thermally coupled distillation is implemented.

가소제 등의 중간원료로 사용하는 2-에틸헥산올의 농축공정에 기존의 2 탑 증류 시스템 대신 에너지 절약형 증류탑인 열복합 증류탑을 사용할 때의 에너지 절감효과를 시뮬레이션을 통하여 계산하였다. 기존의 2탑 증류방식에 비해 약 41%의 에너지 절감효과가 있음을 계산의 결과로부터 알 수 있었으며, 에너지 절감의 원인을 증류곡선으로 설명하였다. 또, 기존 공정 대신 열복합 증류탑을 사용하면 증류탑의 운전비용뿐만 아니라 설비비의 절감도 가능한 추가적인 이득이 있다.

Keywords

References

  1. Wolff, E. A., and Skogestad, S., "Operation of Integrated Three-Product (Petllyuk) Distillation Columns," Ind. Eng. Chem. Res., 34(6), 2094-2103 (1995). https://doi.org/10.1021/ie00045a018
  2. Triantafyllou, C., and Smith, R., "The Design and Optimisation of Fully Thermally Coupled Distillation Columns," Trans. Inst. Chem. Eng., 70(A2), 118-132 (1992).
  3. Kim, Y. H., "A New Configuration for a Fully Thermally Coupled Distillation Column with a Postfractionator and Separated Main Columns," Chem. Eng. Technol., 29(11), 1303-1310 (2006). https://doi.org/10.1002/ceat.200600079
  4. Lee, J. Y., Kim, Y. H., and Hwang, K. S., "Application of a Fully Thermally Coupled Distillation Column for Fractionation Process in Naphtha Reformaing Plant," Chem. Eng. Proc., 43(4), 495-501 (2004). https://doi.org/10.1016/j.cep.2003.02.001